US 3,555,593 A

GPTKB entity

Properties (29)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationNumber gptkb:US_3,555,593
gptkbp:applicationStatus Granted
gptkbp:applicationType Non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
US_5,678,901
gptkbp:claims 10
gptkbp:class Composite materials
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate April 12, 1968
https://www.w3.org/2000/01/rdf-schema#label US 3,555,593 A
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorCountry gptkb:United_States
gptkbp:issuedOn January 19, 1971
gptkbp:legalStatus Lapsed
gptkbp:patentFamily Hargreaves_composite_family
gptkbp:patentNumber 3,555,593
gptkbp:patentType Utility patent
gptkbp:priorityDate April 12, 1968
gptkbp:publicationDate January 19, 1971
gptkbp:relatedPatent US 3,987,654
US_3,456,789
gptkbp:status expired
gptkbp:subclass Reinforced plastics
gptkbp:title Method of making a composite material